Digital thermo-hygrometer



FIG. 1 is a top, front and left side perspective view of a digitalthermo-hygrometer showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a bottom plan view; and

FIG. 6 is a top plan view thereof.

The ornamental design for a digital thermo-hygrometer, as shown.